LTC3370 datasheet(5/20 Pages) AD

5 / 20 page

LTC3302

Rev. 0

For more information www.analog.com

Switching Frequency

vs Temperature

TYPICAL PERFORMANCE CHARACTERISTICS V

IN = 3.3V, TA = 25°C, unless otherwise noted.

Switch Current Limits

vs Temperature

PMOS Current Limit vs VIN

VIN = 5.5V

VIN = 3.3V

VIN = 2.25V

TEMPERATURE (°C)

–50 –25

75 100 125 150

1.85

1.88

1.91

1.94

1.97

2.00

2.03

2.06

2.09

2.12

2.15

3302 G07

VOUT/VIN = 0.2V

TOP SWITCH IPEAKMAX

BOTTOM SWITCH IVALLEYMAX

TEMPERATURE (°C)

–50 –25

75 100 125 150

2.0

2.2

2.4

2.6

2.8

3.0

3.2

3.4

3.6

3.8

4.0

3302 G08

VOUT/VIN = 0.2V

INPUT VOLTAGE (V)

2.5

3.5

4.5

5.5

3302 G09

150°C

25°C

–50°C

VIN Quiescent Current All Modes,

Not Sleeping

Switch Leakage vs Temperature

EN Threshold vs Temperature

PMOS Current Limit vs Duty Cycle

VIN Shutdown Current

vs Temperature

VIN Quiescent Current, Burst

Mode Operation, Sleeping

VIN = 2.5V

VIN = 3.3V

VIN = 5V

DUTY CYCLE (%)

0 10 20 30 40 50 60 70 80 90 100

1.0

1.3

1.6

1.9

2.2

2.5

2.8

3.1

3.4

3.7

4.0

3302 G10

VIN = 2.25V

VIN = 3.3V

VIN = 5.5V

TEMPERATURE (°C)

–50 –25

75 100 125 150

1.2

2.4

3.6

4.8

6.0

3302 G11

TEMPERATURE (°C)

–50 –25

75 100 125 150

110

130

3302 G12

VIN = 2.5V

VIN = 3.3V

VIN = 5.5V

TEMPERATURE (°C)

–50 –25

75 100 125 150

1.0

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.8

1.9

2.0

3302 G13

VIN = 2.5V

VIN = 3.3V

VIN = 5.5V

TOP SWITCH

BOTTOM SWITCH

TEMPERATURE (°C)

–50 –25

75 100 125 150

0.5

1.0

1.5

2.0

2.5

3.0

3302 G14

EN RISING

EN FALLING

TEMPERATURE (°C)

–50 –25

75 100 125 150

340

350

360

370

380

390

400

410

3302 G15

LTC3370 Datasheet(PDF) 5 Page - Analog Devices

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